{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "schema:HowToItem",
  "title": "HowToItem",
  "description": "An item used as either a tool or supply when performing the instructions for how to achieve a result.",
  "type": "object",
  "allOf": [
    {
      "description": "An list item, e.g. a step in a checklist or how-to description.",
      "$ref": "schema:ListItem"
    }
  ],
  "properties": {
    "requiredQuantity": {
      "description": "The required quantity of the item(s).",
      "anyOf": [
        { "type": "number" },
        { "type": "string" },
        { "$ref": "schema:QuantitativeValue" }
      ]
    }
  }
}